Phone Comparison - Oppo R15 vs Oppo A91 vs Oppo A74
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| Manufacturer | Oppo | Oppo | Oppo |
| Announced | Not announced yet | 2019, December | 2021, April 01 |
| Status | Rumored | Coming soon. Exp. release 2019, December 26 | Coming soon. Exp. release 2021, April |
| Colors | Red, Black | Black, Blue, Red | Prism Black, Midnight Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
155.1 x 75.2 x 7.3 mm (6.11 x 2.96 x 0.29 in) |
7.9 mm thickness (0.31 in thickness) |
160.3 x 73.8 x 8 mm (6.31 x 2.91 x 0.31 in) |
| Weight | 175 g (6.17 oz) | 172 g (6.07 oz) | 175 g (6.17 oz) |
| SIM Type | Hybrid Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | LTE 1, 3, 5, 8, 38, 40, 41 |
| Messaging | SMS, MMS, Push Mail, EMail | ||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor(In-display) |
- Fingerprint Sensor (under display, optical) |
| Notification LED | Yes | - | - |
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| OS | Android 8.1 (Oreo) | Android 9.0 (Pie) | Android 11 |
| User Interface | - | ColorOS 6.1 | ColorOS 11.1 |
| Processor | Octa-core | Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53), Mediatek MT6771V Helio P70 (12nm) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) |
| GPU | - | Mali-G72 MP3 | Adreno 610 |
| RAM | 6 GB | 8 GB | 6 GB |
| Internal Memory | 128 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB (dedicated slot) | microSDXC |
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| Type | AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5 | Super AMOLED Capacitive Touchscreen | FHD+ AMOLED Screen 430 nits (typ), 800 nits (peak) |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 6.28 inches | 6.4 inches | 6.43 inches |
| Resolution | 1080 x 2280 pixels (402 ppi) | 1080 x 2340 pixels (403 ppi) | 1080 x 2400 pixels (409 ppi) |
| Screen-to-Body Ratio | 84.28% | - | 84.50% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | Unspecified |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | Dual: 16 MP + 5 MP | 48 MP + 8 MP + 2 MP + 2 MP | 48 MP + 2 MP + 2 MP |
| Flash | LED Flash | LED flash | LED flash |
| Features | Phase Detection Autofocus (PDAF), 1/2.8", 1.12 µm, f/1.7 aperture, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera) 2 MP, f/2.4, 1/5", 1.75µm, depth sensor HDR |
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60fps | 2160p@30fps | 1080p@30fps |
| Front Camera | 20 MP, f/2.0, 1080p [Similar] |
16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm HDR 1080p@30fps [Similar] |
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE | HSPA 42.2/11.5 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | 4.2, A2DP, LE, EDR | 5.0, A2DP, LE, aptX HD | 5.0, A2DP, LE, aptX |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | USB Type-C, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 128 GB, 6 GB RAM | 128 GB, 8 GB RAM | 128 GB, 6 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB (dedicated slot) | microSDXC |
| USB OTG | Supported | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 30W |
Non-removable Li-Po Battery Fast battery charging 33W, 54% in 30 min (advertised) SuperVOOC 2.0 |
| Capacity | 3360 mAh | 4000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
